Housed in a beautifully restored 1896 building, the museum features an extensive collection of telephones manufactured from the early 1900s through the 2000s, hundreds of pieces of telephone-related equipment and memorabilia and military telephones from WWII through the Vietnam War. It is located in the historic Jefferson Barracks Park, a 15-minute drive south of downtown St. Louis.

The self-guided, accessible museum has many hands-on, how-things-work exhibits. The exhibits were created to inspire an interest in engineering and history.

Guided tours are available for groups of 10 or more and should be scheduled at least two weeks before the tour.